How to update your Mac

Other software updates available for your computer might appear, which you should install. Some updates might need to be installed before other updates appear.

Don't interrupt the installation process once you've started to update your system.

You might experience unexpected results if you have third-party system software modiﬁcations installed, or if you've modiﬁed the operating system through other means.

You can also download the manual installer for this update. This is a useful option when you need to update multiple computers but only want to download the update once. Manual installers are available from Apple Support Downloads.